Former Prime Ministet Manmohan Singh and present Prime Minister Narendra Modi differ on many counts, which are  well known.
But they have got a striking resemblance on one important point. Both of them are expert im keeping stoic silence when it is inconvenient for them to answer. Manmohan kept silent on Coal Scam. Now Modi is keeping silent on US President Obama’s last speech in India in which the caste system and communalisation has been severely criticised.
Remember the old saying: Silence is Golden.